1.151.6 SequenceableCollection: enumerating

anyOne

Answer an unspecified element of the collection.

do: aBlock

Evaluate aBlock for all the elements in the sequenceable collection

do: aBlock separatedBy: sepBlock

Evaluate aBlock for all the elements in the sequenceable collection. Between each element, evaluate sepBlock without parameters.

doWithIndex: aBlock

Evaluate aBlock for all the elements in the sequenceable collection, passing the index of each element as the second parameter. This method is mantained for backwards compatibility and is not mandated by the ANSI standard; use #keysAndValuesDo:

findFirst: aBlock

Returns the index of the first element of the sequenceable collection for which aBlock returns true, or 0 if none

findLast: aBlock

Returns the index of the last element of the sequenceable collection for which aBlock returns true, or 0 if none does

fold: binaryBlock

First, pass to binaryBlock the first and second elements of the receiver; for each subsequent element, pass the result of the previous evaluation and an element. Answer the result of the last invocation, or the first element if the collection has size 1. Fail if the collection is empty.

from: startIndex to: stopIndex do: aBlock

Evaluate aBlock for all the elements in the sequenceable collection whose indices are in the range index to stopIndex

from: startIndex to: stopIndex doWithIndex: aBlock

Evaluate aBlock for all the elements in the sequenceable collection whose indices are in the range index to stopIndex, passing the index of each element as the second parameter. This method is mantained for backwards compatibility and is not mandated by the ANSI standard; use #from:to:keysAndValuesDo:

from: startIndex to: stopIndex keysAndValuesDo: aBlock

Evaluate aBlock for all the elements in the sequenceable collection whose indices are in the range index to stopIndex, passing the index of each element as the first parameter and the element as the second.

keys

Return an Interval corresponding to the valid indices in the receiver.

keysAndValuesDo: aBlock

Evaluate aBlock for all the elements in the sequenceable collection, passing the index of each element as the first parameter and the element as the second.

readStream

Answer a ReadStream streaming on the receiver

readWriteStream

Answer a ReadWriteStream which streams on the receiver

reverse

Answer the receivers’ contents in reverse order

reverseDo: aBlock

Evaluate aBlock for all elements in the sequenceable collection, from the last to the first.

with: aSequenceableCollection collect: aBlock

Evaluate aBlock for each pair of elements took respectively from the receiver and from aSequenceableCollection; answer a collection of the same kind of the receiver, made with the block’s return values. Fail if the receiver has not the same size as aSequenceableCollection.

with: aSequenceableCollection do: aBlock

Evaluate aBlock for each pair of elements took respectively from the receiver and from aSequenceableCollection. Fail if the receiver has not the same size as aSequenceableCollection.